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WAEC Mathematics 2019 Paper

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Question : 6

Total: 50

If T = {prime numbers} and M = {odd numbers} are subsets of

\mu

= {x : 0 < x ≤ 10} and x is an integer, find (T

^{\prime}

^{\prime}

).

{4, 6, 8, 10}
{1. 4, 6, 8, 10}
{1, 2, 4, 6, 8, 10}
{1, 2, 3, 5, 7, 8, 9}

Solution:

T = {2, 3, 5, 7}

M = {1, 3, 5, 7, 9}

$\mu$ = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}

T $^{\prime}$ = = {1, 4, 6, 8, 9, 10}

M $^{\prime}$ = {2, 4, 6, 8, 10}

(T $^{\prime}$ $\cap$ M $^{\prime}$ ) = {4, 6, 8, 10}

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